CN100476462C - Basal body of reflector, and fabricating method - Google Patents
Basal body of reflector, and fabricating method Download PDFInfo
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- CN100476462C CN100476462C CNB2006100930684A CN200610093068A CN100476462C CN 100476462 C CN100476462 C CN 100476462C CN B2006100930684 A CNB2006100930684 A CN B2006100930684A CN 200610093068 A CN200610093068 A CN 200610093068A CN 100476462 C CN100476462 C CN 100476462C
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/183—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors specially adapted for very large mirrors, e.g. for astronomy, or solar concentrators
Abstract
A base body of reflector consists of surface plate of reflector, bottom plate set under said surface plate, an intermediate reinforced plate set between said bottom plate and said surface plate and multiple support element set between various said plates. It is featured as enabling to use multiple sub-plate to paste-up said surface plate and bottom plate as well as intermediate reinforced plate for raising rigidity of base body on reflector.
Description
Technical field
The present invention relates to a kind of catoptron, more particularly, relate to sliceable formula basal body of reflector of a kind of multilayer and manufacture method thereof.
Background technology
In reflective astronomical telescope, because the deformation meeting that action of gravity produces changes the shape of minute surface, its result will reduce the image quality of minute surface, therefore, in order to make deformation as far as possible little, need the weight and volume of control mirror body.Yet on the other hand, in order to reach required very high rigidity requirement, traditional catoptron uses thick solid glass to make usually.Usually thickness is 1/5th to 1/10th of matrix diameter, so conventional matrix material consumption is high, weight is big.For the deformation that prevents that gravity from causing, need take corresponding supporting construction, and thick matrix needs expensive annealing process to eliminate the internal stress of matrix.In order to overcome this problem, employing lightweight mirror matrix has been proposed.
The lightweight mirror matrix generally includes mirror board, body core and base plate.Mirror board and base plate are the external structure plates, and they are spaced by the body core.The common adopting quartz glass of body core, materials such as Pyrex and low bulk micro-crystalline ceramic glass are made.Following United States Patent (USP) is the 5th, 076, No. 700 United States Patent (USP)s of the representative example of this type of matrix: DeCaprio and the 4th, 447, No. 130 United States Patent (USP)s of Christiansen.
The body core segment is the structure of a cellular-shaped or sealing chamber type normally.The honeycomb body core is used independently next door or the tubing thermal weld or bonding the forming of segment usually.Its process of manufacture is expensive and be easy to cause the damage of body core segment.
The 2nd, 988, No. 959 U.S. Patent Publications the lightweight mirror matrix of a kind of usefulness glass tube side by side as the body core.The axle center of glass tube is parallel to each other, and parallel with the optical axis of minute surface.Body core and mirror board and base plate bond together with bonding agent.Glass tube can be pipe, square tube or triangle tube.
The 1st, 167, No. 895 BrP discloses a kind of lightweight mirror matrix, and wherein, the body core combines mirror board and base plate, and the body core comprises the pipe fitting or the support member of star section.Perhaps do not use the pipe fitting or the support member of star section, and be to use the support member that comprises the interlocking bar that is " egg case " structure.
The 968th, No. 025 BrP discloses the lightweight mirror matrix of another kind of employing hexagon melikaria core, and body core and minute surface and base plate are combined as a whole.Matrix material is transparent or opaque silica glass.
The 3rd, 507, No. 737 U.S. Patent Publications a kind of lightweight mirror matrix, wherein, the body core comprises a plurality of support members fluting that is " egg case " structure, long and narrow, straight that are assembled in together.
The 3rd, 644, No. 022 U.S. Patent Publication a kind of lightweight mirror matrix, wherein, the body core is formed by Y shape assembly, these Y shape assemblies are welded together, and have the cellular-shaped body core of high rigidity with formation.The material that comprises silicon dioxide is used to make catoptron.
The major defect of this structure is, because manufacturing supporting construction difficulty, so cost is higher relatively.
The 3rd, 754, No. 812 U.S. Patent Publications a kind of with mirror board, body core and base plate hot melt method together.Hot melt is to finish with the radiation heat of carbon arc.Hot melt must carry out under hot melting temperature.Under this temperature, mirror board, base plate and body core all can produce sagging, therefore need interim the support.Body core for the sealing chamber type does not have simple method can be used for installing and the interim support member of dismounting behind hot melt.The 4th, 331, No. 383 U.S. Patent Publications a kind ofly dismantle the method for interim support member by punching on base plate.
The 6th, 176, No. 588 U.S. Patent Publications the ceramic honeycomb body core extruded of a kind of usefulness and mirror board make the method for lightweight mirror matrix.Optionally base plate can be bonded or be attached on the base plate of body core, to improve the mechanical stability and the rigidity of basal body of reflector.
No matter be traditional, still light-duty, the manufacturing of large-scale catoptron is all very difficult and expensive.So a plurality of little sub-mirrors can be used to be spliced into a large-scale catoptron.For this movable jigsaw type catoptron, each sub-mirror all will grind separately, polishing and reconditioning.All sub-mirrors all want accurate reconditioning become the counterpart of corresponding female mirror.Each sub-mirror is from axle or non-rotating symmetroid, and this requires very a difficulty and an expensive non-traditional reconditioning process.In case after installing, all sub-mirrors all will utilize complexity and expensive equipment accurately navigates on same female mirror position, and when changing with environment temperature wind-force at the volley, still keep accurately locating.
In known lightweight mirror matrix, mirror board and base plate all are an integral body.But, not only difficult processing of large-sized sheet material but also difficult the acquisition, also very expensive.In addition, the sandwich support section of known lightweight mirror matrix all needs accurate and time-consuming processing.Therefore, need provide a kind of handling ease, in light weight, the basal body of reflector that cost is low.
Summary of the invention
An aspect of of the present present invention is to provide sliceable formula basal body of reflector of a kind of multilayer and manufacture method thereof.
According to an aspect of the present invention, provide a kind of multilayer mirror matrix, it comprises: mirror board; Base plate, be arranged in mirror board below; At least gusset plate in the middle of one deck is arranged between mirror board and the base plate; With a plurality of support members, be arranged between adjacent each laminate in described mirror board, middle gusset plate and the base plate, described mirror board, middle gusset plate and base plate are combined as a whole.
Described support member and described each laminate fit together by welding or hot melt.Be arranged in the support member consistency from top to bottom between each laminate.
In described mirror board, base plate and the middle gusset plate at least one is spliced by a plurality of daughter boards.
Daughter board be hexagon petal or other can be spliced into other shapes of required plate.Splicing place between the described daughter board is with respect to the predetermined angular that staggers of splicing place between the daughter board of adjacent layer.
A plurality of daughter boards are that identical shaped individual layer is petal, lower floor's daughter board with respect to the angle of mirror board rotation be X* (360 °/M)/N, wherein, N is total number of plies of the plate of basal body of reflector, M is the number of the daughter board of every laminate, the integer from 1 to N-1 of X for not repeating, the selection of X should make the splicing of daughter board as far as possible evenly distribute.
Described support member can be for cylindrical or prismatic, and the thickness of each laminate can be identical.The height of support member can equate with the thickness of described each layer jigsaw.
The breadth extreme of support member can equal the thickness of mirror board.
Distance between the described support member equals 4 to 10 times of mirror board thickness.
The maximum length of described basal body of reflector can be 5 to 10 times of gross thickness of described basal body of reflector, is preferably 6 times.
According to a further aspect in the invention, a kind of method of making the multilayer mirror matrix is provided, this method may further comprise the steps: (a) assembling has the basal body of reflector of mirror board, one or more layers middle gusset plate and base plate, by support member each laminate is combined.Wherein, described step (a) also comprises the support member consistency from top to bottom between each laminate.
Described method comprises the steps: that also (b) makes main mould, and the shape of described main mould is corresponding with the shape of the mirror mirror that expectation obtains; (c) basal body of reflector is placed on equably the top of main mould, and mirror is faced down in the face of main mould; (d) in stove with the assembling basal body of reflector at hot bending hot bending under the predetermined temperature to main mould; (e) under predetermined temperature, further make all parts together, cool off then and annealing in process by hot melt; (f) unload basal body of reflector from main mould.
The shape of the mirror board of the matrix that obtains from step (f) can be convex surface, concave surface or plane.
In described mirror board, middle gusset plate and the base plate at least one can be spliced by a plurality of daughter boards.Described daughter board is a hexagon or petal.
Described step (a) comprises that also splicing place between every straton plate with respect to the stagger step of predetermined angular of splicing place between the daughter board of adjacent layer, makes splicing place between the daughter board arrange evenly as far as possible.
According to a further aspect in the invention, provide a kind of basal body of reflector, it comprises: mirror board; Base plate, be arranged in mirror board below; With a plurality of support members, be arranged between described mirror board and the base plate, described mirror board and base plate are combined as a whole, wherein, described a plurality of support members are solid support members.
Description of drawings
By below in conjunction with accompanying drawing embodiments of the invention being described, above and other objects of the present invention and characteristics will become apparent, wherein:
Fig. 1 is the perspective cutaway view, according to the basal body of reflector of the embodiment of the invention;
Fig. 2 is the cut-open view along the line I-I intercepting of Fig. 1;
Fig. 3 is the three-dimensional view of the support member shown in Fig. 1 and Fig. 2;
Fig. 4 is the three-dimensional view with straight basal body of reflector of 3 layers of jigsaw (N=3), and wherein, every layer of jigsaw is divided into the petal of 3 (M=3) congruence;
Fig. 5 is the vertical view of the mirror board of the basal body of reflector shown in Fig. 4;
Fig. 6 is the vertical view of the middle gusset plate (having removed mirror board) of the basal body of reflector shown in Fig. 4;
Fig. 7 is the vertical view of the base plate (having removed mirror board and middle gusset plate) of the basal body of reflector shown in Fig. 4;
Fig. 8 and Fig. 9 show according to the hot bending of the basal body of reflector of the embodiment of the invention and reflow process.
Embodiment
Now, will describe the present invention in detail according to embodiments of the invention, its example is enumerated in the accompanying drawings.Wherein, the identical label in the different accompanying drawings is represented identical parts.
Fig. 1 is the part section planimetric map according to the basal body of reflector of the embodiment of the invention.Fig. 2 is the cut-open view along the line I-I intercepting of Fig. 1.Fig. 3 is the stereographic map according to the support member in the basal body of reflector of exemplary embodiment of the present invention.
The peripheral shape of the basal body of reflector shown in Fig. 1 and Fig. 2 is rounded, and comprises mirror board 1, middle gusset plate 3 and base plate 4, and mirror board 1 has recessed mirror surface 2. Plate 1,3 and 4 combines by a plurality of support members 5.The combination of support member 5 and each laminate can be bonding, welding or hot melt.
As shown in Figure 2, each support member 5 between mirror board 1 and the middle gusset plate 3 and each support member 5 consistencies from top to bottom between middle gusset plate 3 and the base plate 4 are so that the stressed unanimity of the upper and lower surface of each plate.
According to light-duty multilayer jigsaw formula basal body of reflector of the present invention, can comprise one or more layers middle gusset plate 3, in accompanying drawing of the present invention, exemplarily show the light-duty multilayer jigsaw formula basal body of reflector that comprises one deck gusset plate.In addition, though the basal body of reflector of exemplary embodiment of the present be shaped as circle, but, according to the shape of the minute surface 2 of basal body of reflector of the present invention can be any required mirror shape (for example, concave, convex or straight), the profile of basal body of reflector can be any suitable outer shape (for example, the xsect of basal body of reflector is circle, ellipse or rectangle), and can have any desired size (for example, maximum length is from several inches to several meters).
Usually, each laminate and support member used thickness identical materials easily.But, as required, also can the different material of used thickness.Though preferably use the sheet material of same thickness in same catoptron for each laminate and support member, this not necessarily.Different with existing lightweight mirror matrix, the present invention is applicable to the basal body of reflector of making various sizes, and all can use the identical sheet material of same thickness for the basal body of reflector of various sizes.This has simplified the manufacture process of basal body of reflector to a great extent, and has reduced production cost significantly.
The ratio of the diameter D of basal body of reflector and the maximum of T of total thickness of basal body of reflector within 10: 1 to 5: 1 scope, preferably 6: 1.Can determine the number of plies of middle gusset plate 3 by this proportionate relationship.But for little mirror embryo, for example diameter is less than 10 inches mirror embryo, gusset plate 3 in the middle of can omitting.Support member 5 can have suitable cross sectional shape, and in addition for example circular, square or triangle, also can be the supporting construction of other form.The width in the cross section of support member 5 or diameter are substantially equal to the thickness of mirror board 1.4 to 10 times of the thickness of the distance D between the adjacent strut members 5 ' be mirror board 1.Like this, the support member 5 that is arranged in such a way can provide the maximum support to each laminate 1,3 and 4 when satisfying minimum weight.The quantity of support member 5 and position can utilize finite element method to optimize definite according to deformation and rigidity requirement.
Though in exemplary drawings of the present invention, support member 5 forms separately with middle gusset plate 3.But according to the present invention, support member 5 also can be integrally formed with middle gusset plate 3.
According to exemplary embodiment of the present invention, each laminate 1,3 and 4 can be complete single piece plate, also can be combined into by a plurality of daughter boards.Daughter board can be a hexagon or petal.Reduce cost for further, and don't increase the difficulty of processing, the mirror board of matrix can be whole sheet material, and middle gusset plate and base plate can be combined into daughter board.Every layer all with the rotation/translation dislocation of last layer daughter board so that the rigidity of basal body of reflector is the highest.The simplest and effective jigsaw mode is the petal daughter board of individual layer.For each layer of basal body of reflector combined as a whole, following one deck jigsaw should turn an angle with respect to last layer.
In addition, each laminate can use difform daughter board to be spliced.For example, a laminate uses petal daughter board splicing, and another plate uses the splicing of hexagon daughter board.Daughter board with one deck also can take different shapes.The shape of daughter board can adopt other shapes as required with conveniently, for example, and approximate trapezoid shape and fan-shaped combination.
Provide a stitching algorithm that is applicable to the petal daughter board of individual layer below.If matrix has the N laminate, every laminate is divided into M identical shaped individual layer petal.In order to make the rigidity maximum of basal body of reflector, then descend one deck jigsaw should along optical axis with respect to mirror board rotate X* (360 °/M)/angle of N, wherein, X be one can not repeat from 1 to N-1 integer.That is, if the daughter board of a laminate has rotated 2* (360/M)/N degree, then remaining plate can not rotate 2* (360/M)/N degree again.From mirror board, the selection of the X of next laminate should make the splicing of daughter board overlap and be evenly distributed as far as possible.Below table 1 provide splicing scheme from 2 layers to 6 layers basal body of reflector:
Table 1
| | X | |
| 2 | 1 | |
| 3 | 1，2 | |
| 4 | 2，1，3 | |
| 5 | 2，4，1，3 | |
| 6 | 3，1，5，2，4 |
The algorithm of the anglec of rotation of the daughter board of each laminate is described with reference to the accompanying drawings.
Fig. 4 is the three-dimensional view of plane mirror matrix.Basal body of reflector shown in Fig. 4 has 3 layers of jigsaw (N=3), and every layer of jigsaw is divided into the petal of 3 (M=3) congruence.Fig. 5 is the vertical view of the mirror board of the basal body of reflector shown in Fig. 4, and wherein, the minute surface panel is divided into the petal 8,9 and 10 of 3 (M=3) congruence.Fig. 6 is the vertical view of the middle gusset plate of the basal body of reflector shown in Fig. 4, and wherein, middle gusset plate is divided into the petal 11,12 and 13 of 3 (M=3) congruence.Fig. 7 is the vertical view of the base plate of the basal body of reflector shown in Fig. 4, and wherein, base plate is divided into the petal 14,15 and 16 of 3 (M=3) congruence.
For middle gusset plate because X=1, M=3, N=3, so middle gusset plate should with respect to mirror board around optical axis rotate X* (360 °/M)/N=40 °.
For base plate because X=2, M=3, N=3, so base plate should with respect to mirror board around optical axis rotate X* (360 °/M)/N=80 °.
In a word, in order to make the rigidity maximum of basal body of reflector, the junction between the daughter board of junction between each daughter board of every laminate and adjacent laminate far and is equably separated as far as possible, to increase the stability of structure of basal body of reflector.
Below, describe a kind of manufacture method of basal body of reflector according to an embodiment of the invention in detail with reference to accompanying drawing.
Fig. 4 and Fig. 5 show the simple production process of basal body of reflector.This process may further comprise the steps:
A) make main mould 6, main mould 6 has the shape opposite with the minute surface 2 of catoptron;
B) assembling basal body of reflector, and it is bonding, before hot bending and hot melt processing, be positioned at the support member consistency from top to bottom of different layers;
C) basal body of reflector is placed on equably the top of main mould 6, and mirror is faced down in the face of the respective shapes of main mould 6;
D) in stove with the assembling basal body of reflector at hot bending hot bending under the predetermined temperature to main mould 6;
E) under predetermined temperature, further make all parts together, begin then to cool off and annealing in process by hot melt;
F) unload basal body of reflector from main mould 6, for subsequent treatment is got ready.
The shape of the mirror board of expectation can be plane, convex surface and concave surface, and the shape of the shape of main mould and mirror board is corresponding, promptly the shape of main mould is the corresponding shape of shape of mirror board with expectation, thus make basal body of reflector at hot bending on main mould, form the shape of plane, convex surface or concave surface.
In said method,, also can described mirror board, middle gusset plate and base plate be combined, and not carry out hot bending and hot melt by other modes such as bonding, welding if mirror board itself has had the shape that obtains of expectation.
According to basal body of reflector of the present invention,, make all plates and support member can use thin sheet material owing to adopted one or more layers middle gusset plate.On the one hand weight is reduced greatly, prevented because the big distortion of the minute surface that action of gravity causes on the other hand, owing to the use of middle gusset plate, has guaranteed the rigidity and the stability of structure of basal body of reflector.
Though preferably all jigsaw can be identical with support member thickness in same catoptron, this not necessarily.Different with existing basal body of reflector, the present invention is applicable to the basal body of reflector of making various sizes, and all can use the sheet material of same thickness for the basal body of reflector of various sizes.This has simplified the manufacture process of basal body of reflector to a great extent, and has reduced production cost significantly.
Particularly, it should be appreciated by those skilled in the art that in basal body of reflector, the number of plies of the actual arrangement of support member and quantity, jigsaw, the shape of cutting apart, the detailed description that the assembling scheme of jigsaw is not limited to here to be done, but limited by claim.
In addition, should be appreciated that the details that the hot bending of the basal body of reflector of assembling and hot melt are handled is not restricted for inventive features of the present invention.
Though for schematic and purpose of description have been carried out foregoing description to exemplary embodiment of the present invention, this intention is not exhaustive or restriction the present invention.Can carry out various modifications and variations to above-mentioned instruction.Therefore, the detailed description that scope of the present invention is not limited to here to be done, but limited by claim.
Claims (24)
1, a kind of multilayer mirror matrix comprises:
Mirror board;
Base plate, be arranged in mirror board below;
At least gusset plate in the middle of one deck is arranged between mirror board and the base plate; With
A plurality of support members are arranged between adjacent each laminate in described mirror board, middle gusset plate and the base plate, and described mirror board, middle gusset plate and base plate are combined as a whole,
Wherein, be arranged in support member between described each laminate and the support member consistency from top to bottom between other layers.
2, multilayer mirror matrix as claimed in claim 1, wherein, at least one in described mirror board, base plate and the middle gusset plate is spliced by a plurality of daughter boards.
3, multilayer mirror matrix as claimed in claim 2, wherein, described daughter board is a hexagon or petal.
4, multilayer mirror matrix as claimed in claim 2, wherein, splicing place between the described daughter board is with respect to splicing place between the daughter board of adjacent layer stagger predetermined angular and/or position.
5, multilayer mirror matrix as claimed in claim 4, wherein, described a plurality of daughter board is that identical shaped individual layer is petal, lower floor's daughter board with respect to the angle of mirror board rotation be X * (360 °/M)/N, wherein, N is total number of plies of the plate of basal body of reflector, and M is the number of the daughter board of every laminate, the integer from 1 to N-1 of X for not repeating, the selection of X evenly distributes the splicing of daughter board.
6, as each the described multilayer mirror matrix among the claim 1-5, wherein, described support member is solid support member.
7, as each the described multilayer mirror matrix among the claim 1-5, wherein, described support member is cylindrical or prismatic.
8, as each the described multilayer mirror matrix among the claim 1-5, wherein, described support member and described each laminate fit together by welding or hot melt.
9, as each the described multilayer mirror matrix among the claim 1-5, wherein, the thickness of described each laminate is identical.
10, multilayer mirror matrix as claimed in claim 9, wherein, the height of support member and the thickness of described each laminate equate.
11, as each the described multilayer mirror matrix among the claim 1-5, wherein, the breadth extreme of support member equals the thickness of mirror board.
12, as each the described multilayer mirror matrix among the claim 1-5, the distance between the adjacent strut members equals 4 to 10 times of mirror board thickness.
13, as each the described multilayer mirror matrix among the claim 1-5, wherein, the maximum length of described basal body of reflector is 5 to 10 times of gross thickness of described basal body of reflector.
14, multilayer mirror matrix as claimed in claim 13, wherein, the maximum length of described basal body of reflector is 6 times of gross thickness of described basal body of reflector.
15, a kind of method of making the multilayer mirror matrix may further comprise the steps:
(a) by support member with mirror board, gusset plate and base plate are combined as a whole in the middle of one deck at least, wherein, gusset plate is arranged between mirror board and the base plate in the middle of described one deck at least, support member is arranged between adjacent each laminate in mirror board, middle gusset plate and the base plate, thereby form the multilayer mirror matrix
Wherein, described step (a) also comprises the support member consistency from top to bottom with every layer of support member and other layers.
16, method as claimed in claim 15 also comprises the steps:
(b) basal body of reflector of assembling is put into heat-treatment furnace;
(c) basal body of reflector of hot melt assembling makes all parts by hot melt together, cools off then and annealing in process.
17, method as claimed in claim 15 also comprises the steps:
(b) make main mould, the shape of described main mould is corresponding with the shape of the mirror mirror that expectation obtains;
(c) basal body of reflector is placed on equably the top of main mould, and mirror is faced down in the face of main mould;
(d) in stove with the assembling basal body of reflector at hot bending under the predetermined temperature to main mould;
(e) under predetermined temperature, further make all parts together, cool off then and annealing in process by hot melt; With
(f) unload basal body of reflector from main mould.
18, method as claimed in claim 17, wherein, the mirror board of the matrix that obtains from step (f) be shaped as convex surface, concave surface or plane.
19, method as claimed in claim 15, wherein, at least one in described mirror board, middle gusset plate and the base plate is spliced by a plurality of daughter boards.
20, method as claimed in claim 19, wherein, described daughter board is a hexagon or petal.
21, method as claimed in claim 19, wherein, described step (a) comprises that also splicing place between every straton plate with respect to the step of predetermined angular and/or position that staggers of splicing place between the daughter board of adjacent layer, makes splicing place between the daughter board arrange evenly.
22, as each the described method among the claim 15-21, the distance between the adjacent strut members equals 4 to 10 times of mirror board thickness.
23, as each the described method among the claim 15-21, the maximum length of described basal body of reflector is 5 to 10 times of gross thickness of described basal body of reflector.
24, method as claimed in claim 23, the maximum length of described basal body of reflector are 6 times of gross thickness of described basal body of reflector.
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| CNB2006100930684A CN100476462C (en) | 2006-06-20 | 2006-06-20 | Basal body of reflector, and fabricating method |
| US11/788,463 US20080043352A1 (en) | 2006-06-20 | 2007-04-20 | Lightweight mirrors and methods of manufacturing lightweight mirrors |
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| CNB2006100930684A CN100476462C (en) | 2006-06-20 | 2006-06-20 | Basal body of reflector, and fabricating method |
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| US3912380A (en) * | 1973-06-25 | 1975-10-14 | Boeing Co | Composite type structure for large reflective mirrors |
| US4124277A (en) * | 1977-02-16 | 1978-11-07 | Martin Marietta Corporation | Parabolic mirror construction |
| DE3018785C2 (en) * | 1980-05-16 | 1982-04-15 | Heraeus Quarzschmelze Gmbh, 6450 Hanau | Lightweight mirrors, especially for astronomical purposes and processes for their manufacture |
| DE3116357A1 (en) * | 1981-04-24 | 1982-11-18 | Heraeus Quarzschmelze Gmbh, 6450 Hanau | LIGHTWEIGHT MIRROR BLANK FOR ASTRONOMICAL PURPOSES AND METHOD FOR PRODUCING A SUPPORTING DEVICE FOR SUCH BLANKS |
| FR2574953B1 (en) * | 1984-12-19 | 1988-09-02 | Centre Nat Rech Scient | MIRROR SUBSTRATE, PARTICULARLY FOR PRECISION OPTICS, AND METHOD FOR THE PRODUCTION THEREOF |
| US5106668A (en) * | 1989-06-07 | 1992-04-21 | Hexcel Corporation | Multi-layer honeycomb structure |
| US5076700A (en) * | 1990-12-20 | 1991-12-31 | Litton Systems, Inc. | Bonded lightweight mirror structure |
| US5741445A (en) * | 1996-02-06 | 1998-04-21 | Cvd, Incorporated | Method of making lightweight closed-back mirror |
| US6175588B1 (en) * | 1997-12-30 | 2001-01-16 | Motorola, Inc. | Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system |
| US6045231A (en) * | 1999-08-09 | 2000-04-04 | Martineau; Phillip R. | Open core light-weight telescope mirror and method of manufacture |
| US6176588B1 (en) * | 1999-12-14 | 2001-01-23 | Corning Incorporated | Low cost light weight mirror blank |
| US6236490B1 (en) * | 2000-01-05 | 2001-05-22 | The B. F. Goodrich Company | Dual stage deformable mirror |
| US6600587B2 (en) * | 2001-04-23 | 2003-07-29 | Memx, Inc. | Surface micromachined optical system with reinforced mirror microstructure |
| US7429114B2 (en) * | 2004-07-13 | 2008-09-30 | Itt Manufacturing Enterprises, Inc. | Light-weight mirror blank assembly |
-
2006
- 2006-06-20 CN CNB2006100930684A patent/CN100476462C/en active Active
-
2007
- 2007-04-20 US US11/788,463 patent/US20080043352A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CN101093259A (en) | 2007-12-26 |
| US20080043352A1 (en) | 2008-02-21 |
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